Midwest KeyMod Handguard
Both Midwest Industries and Fab Defense are rolling out new handguards for the Tavor. My inclination is to go with the Midwest Industries version, because I like the KeyMod system. Maybe more importantly, there will be 2 new triggers for the Tavor in 2014. Trigger pull has always, to me, been the weak link of the bullpup system. As much as I liked its many features, I passed on an FNH FS-2000, even though it had a substantially better trigger than any of the AUGs I've shot (and, full disclosure, I have NOT shot any of the new gen AUGs).
The Tavor has a pretty good trigger...for a bullpup...but it's going to get better. Both Geissele Automatics and Timney have announced replacement triggers for the Tavor. I talked to the guys at Geissele and they're pretty close, so I placed an advance order.
I note that Desert Tech, which as pioneered cutting edge bullpups, announced a new one for SHOT, the MDR, interchangeable for 5 calibers. I remember shooting their SRS-A1 a few years back and it was pretty neat. Pretty expensive, but pretty neat.